In Indonesia today, only about 1 out of every 3 people are connected to the Internet. And even though most of their connections are painfully slow, they’re doing some pretty incredible things. Startups like motorcycle delivery service Go-Jek are building impressive adaptations to Indonesia’s unique challenges, while small businesses like fashionable hijab shop HiJup are using the web to redefine marketplaces.

Still, a majority of Indonesians don’t have access to the educational, cultural, and economic opportunities of the Internet. That’s why we’re pleased to announce that Indonesia’s top three mobile network operators—Indosat, Telkomsel, and XL Axiata—have agreed to begin testing Project Loon balloon-powered Internet over Indonesia in 2016. These tests represent an important step toward bringing all of Indonesia online.

Loon balloons act like floating mobile phone towers; flying on the stratospheric winds at altitudes twice as high as commercial planes, each balloon beams an Internet connection down to the ground, and as one drifts out of range, another moves in to take its place. Loon can help telecommunications companies extend their networks; high in the sky, we can help overcome the difficulties of spreading equipment across an archipelago of 17,000 islands of jungles and mountains, providing connectivity to even the most remote islands.

Project Loon balloons travel approximately 20 km above the Earth’s surface in the stratosphere. Winds in the stratosphere are stratified, and each layer of wind varies in speed and direction. By moving with the wind, the balloons can be arranged to form one large communications network.

Over the next few years, we’re hoping Loon can partner with local providers to put high-speed LTE Internet connections within reach of more than 100 million currently unconnected people—that’s enough speed to read websites, watch videos, or make purchases. From Sabang all the way to Merauke, many of these people live in areas without any existing Internet infrastructure, so we hope balloon-powered Internet could someday help give them access to the information and opportunity of the web.

But it’s not the only step Google is taking toward making the Internet both accessible and useful for people in Indonesia. Android One phones are helping to make high-quality smartphones more accessible in a country where most people first access the Internet on a mobile device. And along with that, we’re working to ease the use of data with features sure as Search Lite, which streamlines search so pages load more quickly, or by optimizing web pages so that they require less data to load. Indonesia is also one of the first countries where YouTube users can take videos offline to watch later during periods of low or no Internet connectivity.

We’re also doing what we can to ensure that language isn’t a barrier to the opportunities of the web. Google Translate was introduced for Bahasa in 2008, and more recently we’ve expanded it to Sundanese, a language that’s spoken by nearly 40 million people living on the island of Java.

Soon we hope many more millions of people in Indonesia will be able to use the full Internet to bring their culture and businesses online and explore the world even without leaving home. And for those of you who’ve never been to this country of rich culture and natural beauty, we invite you to head over to Google Street View to explore the famous temples at Borobudur and Prambanan.